Displays and measures to take when errors occur -1 – Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 User Manual

Page 183

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IM 11M12A01-03E

11-11

11.

Inspection and Maintenance

11.3 Replacing Flowmeter in ZR40H Autocalibration Unit

(1) Remove piping and wiring, and remove the ZR40H from the 2B pipe or wall

mounting.

(2) Remove four M6 bolts between brackets.
(3) Remove piping extension
(4) Remove bolts holding flowmeter, and replace it. A white back plate (to make the

float easy to see) is attached. The end of the pin holding down the back plate must
be on the bracket side.

(5) Replace piping, and fix M6 bolts between brackets. *1

*1 : When disassembling and reassembling, mark original positions, and tighten an extra

5-10

°

when reassembling. After tightening, do a liquid leakage test.

COM ON S N

Z RO

F11.7E.eps

Bolt fixes bracket

Flowmeter with back plate

Connecter

Figure 11.8 Flowmeter replacement

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